CN104878644B - A kind of preparation method of copper material Anti-tarnishing special neutral packing board - Google Patents
A kind of preparation method of copper material Anti-tarnishing special neutral packing board Download PDFInfo
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Abstract
The present invention relates to paper-making technology field, preparation method particularly to a kind of copper material Anti-tarnishing special neutral packing board, this preparation method comprises the following steps: by sulfate wood pulp pulping, clean with water after treatment, until the residual content of drug in sulfate wood pulp is down to below 120mg/L, controlling slurry concentration is 3.6～4.0%, and pH is 5.0～8.0；Described slurry carries out first defibrination and secondary pulping respectively, and then dilute with water obtains pulp-water mixture, and pulp-water mixture obtains l Water Paper base after the removal of impurity, drainage molding, i.e. obtains product after press polish.Utilizing the copper material Anti-tarnishing special neutral packing board cleannes that the preparation method of the present invention prepares high, non-oxidizability is strong, color and the gloss reaction without exception to the copper material of packaging, is particularly suitable for the packaging of the time of stocking longer copper material product.
Description
Technical field
The present invention relates to paper-making technology field, particularly to a kind of copper material Anti-tarnishing special in
The preparation method of property packing board.
Background technology
Copper material Anti-tarnishing special neutral packing board is mainly used in war industry equipment product, for bullet,
The packaging of the important goods such as shell case is used, and not only required thickness is consistent, paper is smooth, and moisture is equal
Even, ductility is good, and requires that the color of the copper material to packaging and gloss are without exception instead
Should.The raw skill of the production of neutral packing cardboard is through undressed recirculated water by raw material of wood pulp at present
The operations such as shredded paper, defibrination, molding of manufacturing paper with pulp, setting-out, cylinder dried, a press polish are fabricated by.
The copper material of cladding is turned black by the neutral packing cardboard utilizing this production technology to produce, and is formed
Mottle, is easily generated corrosion.
Summary of the invention
It is an object of the invention to provide the preparation of a kind of steel Anti-tarnishing special neutral packing board
Method.
For reaching above-mentioned purpose, specifically adopt the following technical scheme that:
The preparation method of a kind of steel Anti-tarnishing special neutral packing board comprises the steps:
(1) by sulfate wood pulp mixing pulping, rinsing bath is put into after dehydration, then with through place
Water after reason cleans, until residual content of drug is down to below 120mg/L, controls slurry concentration
Being 3.6～4.0%, pH is 5.0～8.0；
(2) paper pulp first defibrination in fiberizer is obtained semi-finished product slurry, semi-finished product slurry beating degree
Being 26～30 ° of SR, weight in wet base is 14～16g；
(3) semi-finished product being starched secondary pulping and obtain finished pulp, finished pulp beating degree is 38～42 °
SR, weight in wet base is 10.5～12.5g；
(4) finished pulp dilute is obtained the pulp-water mixture that concentration is 0.4～0.8%；
(5), after pulp-water mixture being removed heavy impurity, fibre bundle and non-fiber foreign body, add
Water is diluted to concentration 0.2～0.3%, and drainage molding obtains l Water Paper base, obtains l Water Paper through press dewatering
Page, drying and dehydrating, the press polish when moisture is 13～15%, then proceed to drying and dehydrating,
The press polish again when moisture is 7～10%, after cooling cylinder and get final product.
Concrete, the sulfate wood pulp in step (1) be slurry A and slurry B by weight with
(7～7.5): the mixture that (3～2.5) are mixed to get, wherein slurry A content of ashes is 0.7%
Hereinafter, water extract electrical conductivity is 6～9 at below 10.0mS/m, water extract pH value；Slurry
B tensile index is at more than 70N.m/g, and whiteness is more than 18.
As preferred technical scheme, slurry A content of ashes is 0.3～0.7%, water extract electricity
Conductance is 5.0～10.0mS/m, and water extract pH value is 6～9；Slurry B tensile index is 70～90
N.m/g, whiteness is 18～25.
Described slurry A can be selected for green hill slurry, and described green hill slurry is had by Qingzhou, Fujian Province paper industry share
Limit company produces；Described slurry B can be selected for Baoqing slurry, and described Baoqing slurry is permanent by Huitong County Baoqing
Reach Paper Co., Ltd to produce.
As preferred technical scheme, the sulfate wood pulp in step (1) is slurry A and slurry
Material B is by weight the mixture being mixed to get with 7:3
In step (1), dehydration uses slanted screen dehydration.
Concrete, the water in step (1) is led through reverse-osmosis treated, water power after treatment
Rate is 28～32uS/mm, and pH value is 5.0～8.0.Now can remove the major part gold in water
Belonging to float, chloride etc. in ion, impurity, water makes water quality reach regulation requirement.
As preferred technical scheme, the water in step (1) is through reverse-osmosis treated, through place
Water conductivity after reason is 30uS/mm, and pH value is 7.0.
Water in step (1) is carried out the method that the method for reverse-osmosis treated can use routine.
In step (1), when cleaning with water after treatment, often clean and once reduce sulphuric acid
Residual content of drug 25～35% in salt wood pulp, until the residual near 120mg/L of content of drug
Below.
Described medicine is the mainly alkaline matter such as sodium hydroxide, sodium sulfide, remains content of drug
Assay method can be known in the art all assay methods.One of which tool is set forth below
Some embodiments: measure 100ml filtrate in 250ml triangular flask, with methyl orange for instruction
Agent, it is orange red for terminal for being titrated to solution with the HCl solution of 0.05N, residual medicine
Content
(with Na2CO3Meter)Wherein VHCl is 0.05N's
The volume number that HCl consumes.
Step (1) regulates pH value by a certain amount of aluminum sulfate solution of addition, uses number
When aobvious acidity assaying instrument detection is qualified, stop adding.
The fiberizer that defibrination in step (2) and step (3) uses is double-arc spline fiberizer.
The concrete operations of step (4) are: in machine chest, controlled into by concentration adjusting apparatus
Product slurry concentration is 2.5～2.7% to destroying forebay, by being pumped to discharging box, flows into and rushes stock tank, add water
(the reuse plain boiled water after cylinder part dehydration, it is not necessary to special handling) dilution obtains concentration and is
0.4～the pulp-water mixture of 0.8%.Described concentration adjusting apparatus can open or close automatically according to needs
The aperture size of electrodynamic valve adds water.
The concrete operations of step (5) are: be pumped into pulp-water mixture in desander to remove
The heavy impurities such as metal silt, deliver to cylinder after pressurized screen sieve removes fibre bundle and non-fiber foreign body
High-order slurry-stablizing case in, be diluted with water to concentration 0.2～0.3%, and be uniformly dispersed, many through circular cone
Pipe pulp distributor is distributed into drainage molding on adjustable arc expanded metals groove wire side, obtains l Water Paper base, through squeezing
Dehydration obtains l Water Paper page, drying and dehydrating in drying cylinder, enters when moisture is 13～15%
Three-roller calendar press polish, then continues drying and dehydrating, when moisture is 7～10% in drying cylinder
Time be again introduced into eight roll calendar machine press polish, after cooling cylinder and get final product.
Preferably, in step (5), during drying and dehydrating, temperature controls at 70～108 DEG C, the most both
Can meet and be dried needs, prevent too fast being dried, reduce cost, the flexibility improving page is the most sharp
In ensureing to improve tightness and the physical index of page.
As a kind of embodiment that the present invention is optimal, copper material Anti-tarnishing special neutral wrapping paper
Preparation method, comprises the following steps:
(1) by sulfate wood pulp pulping, put into rinsing bath after dehydration, then use water conductivity
For 30uS/mm, pH value is the water cleaning of 7.0, until the residual medicine in sulfate wood pulp contains
Amount is down to below 120mg/L, and controlling slurry concentration is 4.0%, and pH is 8.0；
(2) through first defibrination, described slurry being obtained semi-finished product slurry, semi-finished product slurry beating degree is 30 °
SR, weight in wet base is 16g；
(3) semi-finished product being starched secondary pulping and obtain finished pulp, finished pulp beating degree is 42 ° of SR,
Weight in wet base is 12.5g；
(4) finished pulp dilute is obtained the pulp-water mixture that concentration is 0.8%；
(5), after pulp-water mixture being removed heavy impurity, fibre bundle and non-fiber foreign body, add
Water is diluted to concentration 0.3%, and drainage molding obtains l Water Paper base, obtains l Water Paper page through press dewatering,
Drying and dehydrating, the press polish when moisture is 14%, then proceed to drying and dehydrating, when moisture contains
Press polish again when amount is 9.2%, after cooling cylinder and get final product.
The preparation method of the present invention adds rinsing process relative to prior art (will sulfate
Residual content of drug in wood pulp is down to below 120mg/L), utilize twice defibrination simultaneously, kowtow
Evenly, adhesion is higher for Xie Du, humidity and wire-dividing broom purification, it can be ensured that stock quality, becomes
Product rate is high.
Technical scheme also includes the steel utilizing the preparation method of the present invention to prepare
Material Anti-tarnishing special neutral packing board.Utilize the steel that the preparation method of the present invention prepares
Anti-tarnishing special neutral packing board cleannes are high, and non-oxidizability is strong, the copper material to packaging
Color and gloss reaction without exception, be particularly suitable for the bag of the time of stocking longer copper material product
Dress.
Detailed description of the invention
Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
Embodiment 1
The present embodiment is the production technology of copper material Anti-tarnishing special neutral packing board, specifically includes
Following steps:
(1) the i.e. green hill of high-quality true qualities sulfate wood pulp of two kinds of different qualities is starched and Baoqing is starched
It is blended in pulping in hydrabrusher in 7.5:3.5 ratio, after utilizing slanted screen dehydration with weight ratio
Put into rinsing bath；(water conductivity after treatment is to recycle the good clear water of reverse-osmosis treated
28uS/mm, pH value is 8.0) wash by certain technological requirement, improve the cleannes of slurry,
Reduce and slurry filtrate remains content of drug, often clean and once reduce residual content of drug 30% left side
The right side, until being down to below 120mg/L, controlling slurry concentration and reaching 3.6%, and pH value reaches 6.5；
(2) it is delivered in the double-arc spline fiberizer of four series connection grind for the first time by slurry with pump
Starching to obtain semi-finished product general, semi-finished product slurry beating degree is 26 ° of SR, weight in wet base 14g；
(3) put into half stock tank, then with pump, semi-finished product slurry is pumped to another group double-arc spline defibrination
Carrying out secondary pulping in machine and obtain finished pulp, finished pulp beating degree is 38 ° of SR, weight in wet base 10.5g,
Place into machine chest；
(4) in machine chest, control slurry by concentration adjusting apparatus dense to 2.5%, then pump is to copying
Forebay, is then pumped to discharging box, flows into and rushes stock tank, and it is 0.4% that dilute obtains concentration
Pulp-water mixture；
(5) pulp-water mixture fan pump is delivered to desander, remove fibre bundle through pressurized screen sieve
And deliver in the high-order slurry-stablizing case of cylinder after non-fiber foreign body, dilute become about 0.2% dense
Degree so that it is fully dispersed uniformly, be more steadily distributed into adjustable arc expanded metals through circular cone multitube pulp distributor
Drainage molding on groove wire side, sticks to be formed on felt l Water Paper base, then through precompressed, main pressure, just
The further press dewaterings of press section element such as pressure, back-pressure, form the l Water Paper with certain wet strength
Page, then introduces drying cylinder portion and dehydration is further dried, and temperature controls at 70 DEG C so that it is paper
Page reaches to enter three-roller calendar during moisture 15%, to improve two sides glossiness and tightness, then enters
Enter to enter after drying cylinder makes moisture reach between moisture content of finished products 7% eight roll calendar machines and carry out last tight
Degree and glossiness process so that it is reach 0.95g/cm3Tightness, then after cooling cylinder enter reel cylinder
Batch, then deliver to cut at flat board cut paper, packaging and warehousing after the assay was approved.
Embodiment 2
The present embodiment is the production technology of copper material Anti-tarnishing special neutral packing board, specifically includes
Following steps:
(1) the i.e. green hill of high-quality true qualities sulfate wood pulp of two kinds of different qualities is starched and Baoqing is starched
It is blended in pulping in hydrabrusher in 7.5:2.5 ratio, after utilizing slanted screen dehydration, puts into rinsing
Pond, the recycling good clear water of reverse-osmosis treated (water conductivity after treatment is 28uS/mm,
PH value is 5.0) wash by certain technological requirement, improve the cleannes of slurry, reduce slurry filter
Liquid remains content of drug, often cleans and once reduce residual content of drug about 30%, until fall
To below 110mg/L, controlling slurry concentration and reach 3.8%, pH value reaches 7.1；
(2) at the beginning of then being delivered to double gardens mill pulp grinder of four series connection is carried out by paper pulp with pump
Secondary defibrination, semi-finished product slurry 28 ° of SR of beating degree, weight in wet base 15g；
(3) put into half stock tank, then deliver to another Zu Shuan garden mill pulp grinder becomes by pumping
Product slurry defibrination, wears into the slurry meeting technological requirement, 40 ° of SR of beating degree, weight in wet base 11.5g, then
Put into machine chest；
(4) in machine chest, control slurry by concentration adjusting apparatus dense to 2.6%, then pump is to copying
Forebay, is then pumped to discharging box, flows into and rushes stock tank, is diluted with water to the pulp-water of about 0.6%
Mixture；
(5) pulp-water mixture fan pump is delivered to desander, then is sieved into distributing trough through pressure,
Flow into the high-order slurry-stablizing case of six garden nets, add water the concentration being diluted to about 0.25% so that it is
Fully dispersed uniformly, be more steadily distributed on adjustable arc expanded metals groove wire side through circular cone multitube pulp distributor
Drainage molding, sticks to be formed on felt l Water Paper base, then through precompressed, main pressure, malleation, back-pressure
Deng the further press dewatering of press section element, form the l Water Paper page with certain wet strength, then
Introduce drying cylinder portion and dehydration, temperature 90 DEG C so that it is page reach moisture 14% are further dried
Time enter three-roller calendar, to improve two sides glossiness and tightness, enter back into drying cylinder and make moisture reach
Enter eight roll calendar machines after between moisture content of finished products 8.5% to carry out at last tightness and glossiness
Reason so that it is reach 1.0g/cm3Tightness, then after cooling cylinder, enter reel cylinder batch, then deliver to
Cut at flat board cut paper, after the assay was approved packaging and warehousing.
Embodiment 3
The present embodiment is the production technology of copper material Anti-tarnishing special neutral packing board, specifically includes
Following steps:
(1) the i.e. green hill of high-quality true qualities sulfate wood pulp of two kinds of different qualities is starched and Baoqing is starched
It is blended in pulping in hydrabrusher in 7:3 ratio, after utilizing slanted screen dehydration, puts into rinsing bath.
(water conductivity after treatment is 30uS/mm, pH to recycle the good clear water of reverse-osmosis treated
Value is 7.0) wash by certain technological requirement, improve the cleannes of slurry, reduce slurry filtrate
Middle residual content of drug, often cleans and once reduces residual content of drug about 30%, until being down to
Below 120mg/L, controls slurry concentration and reaches 4.0%, and pH value reaches 8.0；
(2) at the beginning of then being delivered to double gardens mill pulp grinder of four series connection is carried out by paper pulp with pump
Secondary defibrination, semi-finished product slurry 30 ° of SR of beating degree, weight in wet base 16g；
(3) put into half stock tank, then deliver to another Zu Shuan garden mill pulp grinder becomes by pumping
Product slurry defibrination, wears into the slurry meeting technological requirement, 42 ° of SR of beating degree, weight in wet base 12.5g, then
Put into machine chest；
(4) in machine chest, control slurry by concentration adjusting apparatus dense to 2.7%, then pump is to copying
Forebay, is then pumped to discharging box, flows into and rushes stock tank, is diluted with water to the pulp-water of about 0.8%
Mixture；
(5) pulp-water mixture fan pump is delivered to desander, then is sieved into distributing trough through pressure,
Flow into the high-order slurry-stablizing case of six garden nets, add water the concentration being diluted to about 0.3% so that it is fill
It is uniformly dispersed, is more steadily distributed on adjustable arc expanded metals groove wire side filter through circular cone multitube pulp distributor
Water molding, sticks to be formed on felt l Water Paper base, then through precompressed, main pressure, malleation, back-pressure etc.
The further press dewatering of press section element, forms the l Water Paper page with certain wet strength, then draws
Enter drying cylinder portion and dehydration, temperature 108 DEG C so that it is page reach moisture 14% are further dried
Time enter three-roller calendar, to improve two sides glossiness and tightness, enter back into drying cylinder and make moisture reach
After moisture content of finished products 9.2%, enter eight roll calendar machines carry out last tightness and glossiness process, make
It reaches 1.06g/cm3Tightness, then after cooling cylinder, enter reel cylinder batch, then deliver to flat plate cutting
Cut at paper, after the assay was approved packaging and warehousing.
Comparative example 1
Comparative example 1 differs only in the water used in step (1) without instead with embodiment 3
Infiltration processes.
Comparative example 2
Comparative example 2 and differing only in of embodiment 3 do not include step (3) in comparative example 2,
In comparative example 2, i.e. only carried out first defibrination.
Experimental example
By embodiment 1～3 and the packing board of comparative example 1 and comparative example 2 according to the routine of this area
Experimental technique is tested as follows, and experimental result is as follows:
As can be seen from the above table, the product degree of purity using the aquatic product of reverse-osmosis treated is good, PH
Being worth into neutrality, Contents of Water-soluble Chloride is low, and simulating storage is effective.Increase in process of production
Add first defibrination operation, tensile strength and the folding strength of product can be improved, improve product surface equal
Evenness.
Although, the most with a general description of the specific embodiments the present invention is made
Detailed description, but on the basis of the present invention, it can be made some modifications or improvements, this
Will be apparent to those skilled in the art.Therefore, without departing from present invention spirit
On the basis of these modifications or improvements, belong to the scope of protection of present invention.
Claims (9)
1. the preparation method of a copper material Anti-tarnishing special neutral packing board, it is characterised in that
Comprise the steps:
(1) by sulfate wood pulp pulping, rinsing bath is put into after dehydration, then with through reverse osmosis
Water after process cleans, and water conductivity after treatment is 28～32uS/mm, and pH value is
5.0～8.0, until the residual content of drug in sulfate wood pulp is down to below 120mg/L, control
Slurry concentration is 3.6～4.0%, and pH is 5.0～8.0；
(2) through first defibrination, described slurry being obtained semi-finished product slurry, semi-finished product slurry beating degree is
26～30 ° of SR, weight in wet base is 14～16g；
(3) semi-finished product being starched secondary pulping and obtain finished pulp, finished pulp beating degree is 38～42 °
SR, weight in wet base is 10.5～12.5g；
(4) finished pulp dilute is obtained the pulp-water mixture that concentration is 0.4～0.8%；
(5), after pulp-water mixture being removed heavy impurity, fibre bundle and non-fiber foreign body, add
Water is diluted to concentration 0.2～0.3%, and drainage molding obtains l Water Paper base, obtains l Water Paper through press dewatering
Page, drying and dehydrating, the press polish when moisture is 13～15%, then proceed to drying and dehydrating,
The press polish again when moisture is 7～10%, after cooling cylinder and get final product.
Preparation method the most according to claim 1, it is characterised in that in step (1)
Sulfate wood pulp be slurry A and slurry B is by weight with (7～7.5): (3～2.5) mix
The mixture obtained, wherein slurry A content of ashes is below 0.7%, and water extract electrical conductivity exists
Below 10.0mS/m, water extract pH value is 6～9；Slurry B tensile index at more than 70N.m/g,
Whiteness is more than 18.
Preparation method the most according to claim 2, it is characterised in that in step (1)
Sulfate wood pulp be slurry A and slurry B is by weight the mixture that is mixed to get with 7:3.
4. according to the preparation method described in any one of claim 1-3, it is characterised in that step
Suddenly the water in (1) is through reverse-osmosis treated, and water conductivity after treatment is 30uS/mm,
PH value is 7.0.
5. according to the preparation method described in any one of claim 1-3, it is characterised in that step
When suddenly (1) being cleaned with water after treatment, often clean and once reduce in sulfate wood pulp
Residual content of drug 25～35%, until residual content of drug is down to below 120mg/L.
6. according to the preparation method described in any one of claim 1-3, it is characterised in that step
Suddenly in (5), temperature during drying and dehydrating controls at 70～108 DEG C.
7. according to the preparation method described in any one of claim 1-3, it is characterised in that step
Suddenly the fiberizer that the defibrination in (2) and step (3) uses is double-arc spline fiberizer.
Preparation method the most according to claim 1, it is characterised in that include following step
Rapid:
(1) by sulfate wood pulp pulping, put into rinsing bath after dehydration, then use water conductivity
For 30uS/mm, pH value is the water cleaning of 7.0, until the residual medicine in sulfate wood pulp contains
Amount is down to below 120mg/L, and controlling slurry concentration is 4.0%, and pH is 8.0；
(2) through first defibrination, described slurry being obtained semi-finished product slurry, semi-finished product slurry beating degree is 30 °
SR, weight in wet base is 16g；
(3) semi-finished product being starched secondary pulping and obtain finished pulp, finished pulp beating degree is 42 ° of SR,
Weight in wet base is 12.5g；
(4) finished pulp dilute is obtained the pulp-water mixture that concentration is 0.8%；
(5), after pulp-water mixture being removed heavy impurity, fibre bundle and non-fiber foreign body, add
Water is diluted to concentration 0.3%, and drainage molding obtains l Water Paper base, obtains l Water Paper page through press dewatering,
Drying and dehydrating, the press polish when moisture is 14%, then proceed to drying and dehydrating, when moisture contains
Press polish again when amount is 9.2%, after cooling cylinder and get final product.
9. the steel Anti-tarnishing that the preparation method described in any one of claim 1-8 prepares
Special neutral packing board.
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| CN110219194B (en) * | 2019-06-06 | 2020-08-07 | 潍坊汇胜绝缘技术有限公司 | Production method for eliminating steam channel marks on surface of insulating paperboard |
| CN111910457B (en) * | 2020-08-03 | 2023-03-24 | 湖南广信科技股份有限公司 | Paperboard and manufacturing method and application thereof |
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| CN101368353A (en) * | 2008-09-26 | 2009-02-18 | 袁新胜 | Preparation method of technique paperboard |
| CN101851875A (en) * | 2010-05-17 | 2010-10-06 | 宁波中华纸业有限公司 | Method for processing anti-counterfeiting packaging paper board |
| CN102191725A (en) * | 2011-03-12 | 2011-09-21 | 郭友实 | Production method of high-performance latex paper |
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| US5800675A (en) * | 1992-02-10 | 1998-09-01 | Kinsley, Jr.; Homan B. | Process for making a paper based product containing a binder |
| CN101368353A (en) * | 2008-09-26 | 2009-02-18 | 袁新胜 | Preparation method of technique paperboard |
| CN101851875A (en) * | 2010-05-17 | 2010-10-06 | 宁波中华纸业有限公司 | Method for processing anti-counterfeiting packaging paper board |
| CN102191725A (en) * | 2011-03-12 | 2011-09-21 | 郭友实 | Production method of high-performance latex paper |
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